Home / 8,590,945-12,858,377.82-6,315,866.60

Finding the Fourth Proportional to 8,590,945, 12,858,377.82 and 6,315,866.60

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Solution

The fourth proportional to 8,590,945, 12,858,377.82 and 6,315,866.60 is: 9,453,185.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,590,945 : 12,858,377.82 = 6,315,866.60 : x
  2. Step 2: Convert to fraction form
    8,590,945/12,858,377.82 = 6,315,866.60/x
  3. Step 3: Cross multiply
    8,590,945x = 12,858,377.82 × 6,315,866.60
  4. Step 4: Simplify right side
    8,590,945x = 81,211,799,003,518.81
  5. Step 5: Solve for x
    x = 81,211,799,003,518.81/8,590,945
  6. Step 6: Final answer
    x = 9,453,185.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.